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Mastering Elastic Stack

You're reading from   Mastering Elastic Stack Dive into data analysis with a pursuit of mastering ELK Stack on real-world scenarios.

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Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781786460011
Length 526 pages
Edition 1st Edition
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Authors (2):
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Ravi Kumar Gupta Ravi Kumar Gupta
Author Profile Icon Ravi Kumar Gupta
Ravi Kumar Gupta
Yuvraj Gupta Yuvraj Gupta
Author Profile Icon Yuvraj Gupta
Yuvraj Gupta
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Toc

Table of Contents (13) Chapters Close

Preface 1. Elastic Stack Overview FREE CHAPTER 2. Stepping into Elasticsearch 3. Exploring Logstash and Its Plugins 4. Kibana Interface 5. Using Beats 6. Elastic Stack in Action 7. Customizing Elastic Stack 8. Elasticsearch APIs 9. X-Pack: Security and Monitoring 10. X-Pack: Alerting, Graph, and Reporting 11. Best Practices 12. Case Study-Meetup

Elasticsearch modules

Every great project has a number of modules to support what it offers. Elasticsearch has many such modules. These modules need some settings, either static using elasticsearch.yml or dynamic settings, which can be updated using the cluster API. Let's look at different modules.

Cluster module

The cluster module decides how the shards are allocated to nodes and takes care of the movement of shards in order to keep the cluster balanced. This process is known as shard allocation. There are a number of settings for this module, which can be dynamically applied using the cluster API. These settings take care of shard allocation among nodes in a cluster as well as within a node.

Discovery module

The discovery module helps to discover the nodes in the network for a specified cluster. In the elasticsearch.yml configuration file, there is one configuration for the cluster name, which decides which cluster this node will be part of. The default name is elasticsearch:

cluster...
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